답안 #169991

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
169991	2019-12-23T14:12:29 Z	mhy908	Global Warming (CEOI18_glo)	C++14	62 / 100	74 ms	7148 KB

glo

#include <bits/stdc++.h>
#define pb push_back
#define mp make_pair
#define F first
#define S second
using namespace std;
typedef long long LL;
typedef pair<int, int> pii;
typedef pair<LL, LL> pll;
const LL llinf=9000000000000000000;
const int inf=2000000000;
int n;
LL x, arr[200010];
vector<LL> lis, lds;
int dplis[200010], dplds[200010], ans;
LL minlds[200010];
int main()
{
    scanf("%d %lld", &n, &x);
    for(int i=1; i<=n; i++)scanf("%lld", &arr[i]);
    for(int i=n; i>=1; i--){
        auto it=lower_bound(lds.begin(), lds.end(), -arr[i]);
        if(it==lds.end())lds.pb(-arr[i]);
        else *it=-arr[i];
        dplds[i]=lds.size();
        minlds[i]=-lds[dplds[i]-1];
    }
    minlds[n+1]=llinf;
    for(int i=1; i<=n; i++){
        auto it=lower_bound(lis.begin(), lis.end(), arr[i]);
        if(it==lis.end())lis.pb(arr[i]);
        else *it=arr[i];
        dplis[i]=lower_bound(lis.begin(), lis.end(), minlds[i+1]+x)-lis.begin();
    }
    ans=dplds[1];
    for(int i=1; i<n; i++){
        ans=max(ans, dplis[i]+dplds[i+1]);
    }
    printf("%d", ans);
}

Compilation message

glo.cpp: In function 'int main()':
glo.cpp:19:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %lld", &n, &x);
     ~~~~~^~~~~~~~~~~~~~~~~~~
glo.cpp:20:33: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(int i=1; i<=n; i++)scanf("%lld", &arr[i]);
                            ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1

5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	248 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct

Subtask #2

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	248 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	420 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct

Subtask #3

0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	248 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	420 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Incorrect	2 ms	376 KB	Output isn't correct
20	Halted	0 ms	0 KB	-

Subtask #4

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	73 ms	5104 KB	Output is correct
2	Correct	74 ms	4956 KB	Output is correct
3	Correct	73 ms	4984 KB	Output is correct
4	Correct	73 ms	5076 KB	Output is correct
5	Correct	50 ms	7144 KB	Output is correct

Subtask #5

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	19 ms	1528 KB	Output is correct
2	Correct	19 ms	1528 KB	Output is correct
3	Correct	19 ms	1528 KB	Output is correct
4	Correct	13 ms	2036 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	13 ms	2032 KB	Output is correct
7	Correct	16 ms	1528 KB	Output is correct

Subtask #6

17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	36 ms	2740 KB	Output is correct
2	Correct	36 ms	2680 KB	Output is correct
3	Correct	71 ms	5044 KB	Output is correct
4	Correct	51 ms	7148 KB	Output is correct
5	Correct	25 ms	3696 KB	Output is correct
6	Correct	44 ms	6604 KB	Output is correct
7	Correct	46 ms	7036 KB	Output is correct
8	Correct	30 ms	2684 KB	Output is correct

Subtask #7

0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	248 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	420 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Incorrect	2 ms	376 KB	Output isn't correct
20	Halted	0 ms	0 KB	-